The spelling of the word "SYSCATB" can be explained using the International Phonetic Alphabet (IPA). The first two letters, "SY," are pronounced as /sɪ/, which makes the "s" sound followed by the "short i" sound. The next four letters, "SCAT," are pronounced as /skæt/, which makes the "sk" sound followed by the "short a" sound and then the "t" sound. The final letter, "B," is pronounced as /bi/, which makes the "b" sound followed by the "long i" sound. Together, these sounds create the unique spelling of the word "SYSCATB."